Atomizer



G. mcuhloi ms.

ATOMIZER.

APPLICATION FILED FEB. 20. 1919.

Patnted Feb.10,1920

2 SHEETS-SHEET l- I 6, Men. JOHNS.

ATOMIZER.

APPLICATION FILED FEB- 20 1919. i l 33,&o Patented Feb. 10,1920.

2 SHEETS-SHEET 2- tion.

' ful i UNITED-"sures PATENT orjFIoE.

GEORGE MOD. corms, or sT. LOUIS, MISSOURI, ASSIGNOR TO, w. N, MATTHEWSAND BBOTHEB, INC., or sT. LOUIS, MISSOURI, A CORPORATION OF NEW MEXICO.

ATOMIZER.

esonas.

To all whom it may concern:

Be it known that I, GEORGE MOD. JOHNS, a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulImprovement inAtomizers, of which the following is a fulL-clear, andexact description, such as will enable others skilled in the art towhich it appertains to make and use the same, reference being had to theaccompanying drawings, forming part of this specification, in whichFigure 1 is a top plan view of my improved atomizer.

Fig. 2 is a side elevational view of my improved atomizer partlyinvertical see Fig. 3 is a cross-sectional view through the cap casting.

Fig. 4 is a detailed view of vthe handle arrangement.

Fig. 5 is a detailed View of the container housing.

design partly for use in spraying paint, lnsecticldes, etc., and whichis commonly known as'a. paint gun or spraying gun.

The object of my invention- 1s' to simplify the construction ofatomizers of the char acter described, cheapen the construction thereof,and make such devices efficient,

and e able dismantling for the purposes of cleaning, repairing orrenewing the parts.

In the drawings, 1 indicates a container preferably in the form of awell-known type of fruit jar and which is designed to receive the paint,spray, insecticide, spraying compound or other material to be used.

2 indicates the housing for the container preferably made in the form ofan 0 en ended metal cylinder, around and. 'wit in the upper edge ofwhich are a series of centering or cushioning tongues, 3 for holding thehousing inposition on the container.

By the use of a metal housing, the glass container is preserved againstbreakage from knocks or jars received in service.

The upper side of the container 1 is provided with the usual screwthread .1 for engagement with the threaded flange 4 of a casting 4. Atthe base of this flange 4 a Th1 inventionrelates to a new and use--uigirovement in atomizers of that type- I Specification of LettersPatent. Patented Feb. 10, Application filed February 20, 1919'. Serialno. 278,132.

packing ring or gasket 5 is preferably employed-not so much for the,puppose of making an air tight fit, but to prefentaccrother end of whichis threaded or tapped as shown in Fig. 2 to receive a nipple 8, the endofsaid nipple being tapered as shown.

9 indicates a duct-in the casting 4, con'1-' municating with a source ofcompressed air supplyand controlled in a manner herelnafter described.The eX1t end of. duct 9- terminates at one side of the nipple'8 as shownin Fig. 2.

10 indicates a nozzle member whose inner end is formed with acylindrical bore to receive the projecting end of casting 4, which atthis point is also made cylindrical. The interior'bore of nozzle 10 isreduced by a shoulder 10 and thence formed tapering, into orthroughwhich tapering bore pro- The opening in' pipe ,6"com-I municates with aduct"? in the casting, the

jects the nipple 8. The outer surface ofnozzle 10 is preferably taperedorformed conical as shown.

1O 1nd1cates lugs extending outwardly from the inner end of the nozzle.and through which passes a butterfly clamping nut 11. In order to permitthese lugs to have movement to and from their clamping position,-theyare partly severed from the sleeve constituting the nozzle by a saw kerf10 By this arrangement, theonozzle may be adjusted inwardly, outwardlyand circumferentially on the cylindrical portion of castin 4, and lockedinto its adjusted position turning off the butterfly nut.

There are no screw threads employed in the mounting of the nozzle on thecasting, and this is deemed an advantage as the parts are not liable tostick and thereby prevent adjustment, when in dis-use for any length oftime, and which dis-use might occasion a drying of the paint or liquidupon or around the nozzle.

The duct 9 referred to communicates with a chamber in which is arrangeda ball valve 12, said valve being held to its seat by In order to securethe spring 13 in place,

a pipe 16 is screwed into the lower threaded end of the valve chamber,the said pipe having it lower end threaded to receive a nipple on a nut17 18 indicates a handle of wood, fiber, or some suitable material, saidhandle being preferably cylindrical in cross-section, and havingitsupper end notched as indicated at 18, in Fig. 1, so as to receive apro jection on the casting 4 whereby the handle is held againstrotation. The nut 17 impinges against a washer 19 arranged in a notch orrecess in the lower end of the handle and the handle is thus clamped inposition on the pipe 16 by a nut 17.

In orderto effect a convenient and quickly operated connection betweenthe source of air supply and the pipe 16, and to enable freemanipulation of the atomizer, I employ preferably a rubber tube 20leading from the source of air supply into the end of which is screwedan angularly arranged nipple 21, having a threaded flange 22 formin avseat f0 a rubber nipple-engaging Washer-23 which may be of anywell-known construction and shape, said rubber washer being held inposition by a threaded cap 24.

The operation of the device is obvious from. the foregoing description.The paint or other liquid ingredient to be sprayed is placed in thecontainer and the parts as sembled the pipe 20 being connected to somesuitaJble source of air supply. In practice, I have found that apressure of from 18 to 25 pounds gives satisfactory results. Thepressure of the air from the source of supply. assisted'by the spring13, tends to close the ball valve 12 and when the valve 12 is closed,there'v is no siphoning action, and, consequently no spraying of thepaint or contents of the container 1. WVhen the valve operating buttonis pressed and air permitted to flow through the duct 9 and out throughthe nozzle, it will draw the contents from the container up through thepipe 6, and out of the nozzle 8, and cause the liquid contents so drawnthrough the nipple, to be spread out or sprayed, the air breaking thestream issuing from the nipple into small particles or divisions.

WVhat I claim is: 1. Anatomizer of the character described comprising acontainer, a housing for said container, and cushioning tongues on saidhousing for frictionally engaging said container. 1

2. An atomizer of the character described comprising a glass container,a metal housmg inclosing said container, cushioning devices interposedbetween said container and said housing, a cap casting detachablymounted on said container and provided with ducts or passages, a nipplearranged at the extremity of one of said ducts, a nozzle around saidnipple and in communication with the other of said ducts, and means forcontrolling air pressure through the last mentioned duct.

3. An atomizer comprising a container and a detachable cap, said capbeing in the form of a casting, having ducts therein, a

nozzle arranged on said casting and in communication with one of saidducts, said nozzle having perforated lugs or ears partly severedtherefrom, and a clamping means cooperating with said lugs or cars forsecuring the nozzle 111 an ad usted pos1t1on on said casting. v

4;. An atomizer comprising a container, and a ca casting provided withducts, one of said cucts being in communication With the interior of thecontainer and terminating in a nipple, and the other of said ductscommunicating with the interior of a nozzle surrounding said nipple, anozzle having yielding lugs or ears, and a clamping means cooperatingwith said lugs or ears for-securing said nozzle in relation to saidnipple, and means for controlling the supply of air pressure to saidnozzle.

5. In an atomizer of the character described, the' combination of acontainer and a cap casting detach-ably mounted thereon, a manuallyoperated valve arranged in said casting, a handle secured to thecasting, and means for locking the handle against rotary movement on thecasting.

6. In an atomizer, the combination of a container and its cap casting,said casting being provided with a duct for the passage of compressedair, a manipulative valve arranged in said duct, a pipe secured to thecasting and terminating in a nipple for connection to a source of airsupply, a handle arranged upon said pipe, and means upon said nipple forengaging said pipe and holding said handle in'position.

7. In an atomizer, the combination of a container and a cap casting, thelatter being provided with an air duct for the passage of compressedair, a n'ianipulative valve arranged in said duct, 9. wipe screwed intosaid casting and communicating with said duct, a handle arranged uponsaid pipe and provided with means for engaging the casting to preventrotation of said handle, a nipple threaded upon said pipe fd-r engagingthe handle and hnlding the same in position, and

a supply pipe leadin from the source of compressed air supp y, saidsupply pipe '10 having means for quick attachment and detachment fromsaid nipple.

In testimony whereof I hereunto aiiix my signature this 17th day ofFebruary 1919.

GEO. MUD. JOHNS

